justice perished spending $300 donated from the sun and the forty-niners. >> jacqueline: big changes coming to the forecast mainly clear skies this originated up and canada. the cold front moves through five or 6:00 in the morning the could see a brief shower. temperatures dropping into low 50s. very very cold temperatures affecting the entire bay area except for san francisco. widespread frost and freezing temperatures again in the '20s and thirty spirit low fifties for tomorrow afternoon clear skies and calm in wins. saddling into the bay area wednesday and thursday 20 to start the day. we will one son it will be a chilly bay area. people "people behaving badly." >> pam: there's no shortage of big rig drivers on bay area day like today, with business ramping up after a long holiday weekend. >> pam: so who makes sure their trucks are safe? highway patrol officers do -- with random inspections. joined them, and found some people behaving badly. >> reporter: they checked me thinks the truck could be taken off of service which means in has to stay put until the problem is found. in cas